-2.4%
CMCSA vs SIRI
-3.1%
+0.7%
-9.6%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1mo.
| Period | Portfolio | SIRI | Excess | Alpha |
|---|---|---|---|---|
| 1D | -6.6% | -0.9% | -5.7% | -6.5% |
| 7D | -8.3% | -3.9% | -4.4% | -7.9% |
| 30D | -2.4% | -0.8% | -1.6% | -2.3% |
| All | -2.4% | -3.1% | +0.7% | -2.3% |
Cumulative growth
Daily Returns
Daily percentage return beside SIRI.
Daily Out/Under-Performance
Portfolio return minus SIRI return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × SIRI return. Early observations use the first valid beta; later observations use the trailing beta estimated for each date.
Cumulative Out/Under-Performance
Relative wealth over 1mo: compounded portfolio wealth divided by compounded SIRI wealth, less one. Both series rebase at the selected span's start.
Cumulative Alpha
Compounded beta-adjusted residual returns apply the first valid beta to early observations, then the trailing beta ending on each date.
Updating return analytics…
1mo analysis · Full analysis span regression · Available span rolling